Wrench



March 3, 1931. A. L. `AHRAHAMSON WRENCH Filed June A12, 1929 Attorney Patented Mar. 3, 1931 ALVIN L. ABRAHAMSON, or MAcxsvrnLEgKANsAs Wannen A Application led .Tune 12,

This' inventionpertains to improvements in wrenches and the like and has as its primary object the provision of a wrench of the quick acting type consisting of but very few ,'15 parts, very simple in construction and can be conveniently and economically manufactured, durable, easily operated, and otherwise Well adapted for the purpose intended.

Another very important object of the in- `1 0 vention is to provide a novel Wrench wherein there is a movable jaw shiftable toward a fixed aw by means of a handle having a detachable engagement with the movable jaw.

Other objects and advantages of the inven- 15 tion will appear from the study of the following description talren in connection with the accompanying drawings, wherein:

Figure 1 is a side elevation of a Wrench constructed in accordance with the present '20 invention and showing certain parts broken away.

Figure 2 is an end elevation of the invention.

Figure 3 is a side elevation of the stationary law* Figure 4 is a fragmentary detail sectional View taken through the wrench and showing the spring means for holding `the operating lever in adjusted position.

.39 Figure 5. is a side elevation ofthe movable jaw.

l With reference more in detail to the drawings it will be seen that the main body or head 5 is provided with a stationary jaw 6 and with e two spaced parallel walls 7--7,` l which are provided internally with opposed transverselv extending channels or grooves 8--8. VAs clearly illustrated, the stationary jaw 6 is aty one side ofthe member 5 and the two parallel'` walls 7 7 extend laterally therefrom.

The movable jaw 9 comprises a head 10, formedon one end of a body portion 11 and is provided on opposite faces with a rib 12-12 Y adapted to be received within the channels of the head 5 when the body portion 11 thereof is arranged for sliding movement between the walls 7--7 of the-stationary jaw. l

As is clearly illustrated, the body portion 11 of the movable jaw 9 has a recess 12 j cess 20.

' the-recess 12 Vformed in thek body portionof i929. "serial No, 370,351;

`formed thereon, for a purpose to'be herein'- after more fully Set lforth. i f JThe handle barnlever for operatingv the movable jaw 9 is of a construction best'illus'- Y tratedin-*Figurel and comprises a body: por- Tg5 tion 13, which body portiontapers toward one 'end and terminates in a rounded extremity or head 14 adapted to--be received within the Y recess 12" of the movable j aw The lever adjacent the roundevdvhead 14 is providedjwith ,v6.0 a bolt and nut 15 and 16 respectively, adapted to constitute a fulcrum such as isillustrated in Figure 1. The nut and 'bolt is adapted yto extend throughregistering slots '17-17 formed in the twoside walls 7-' -7 as illustrated. s

As shown each of theseslots 17 is provided with notches 18y each of the slots being provided also with a projection 17 separating the notches, and disposed at right angles 7b to the length'ofslots 17.v It is also to be noted that projection r17 between theA notches 18 is rounded on one edge as at -19v and formed on its opposite edge so as to provide' are*- From the foregoing then, Vit will beseen that the bolt 15 extends A- through the slot 17 -17 to rest yin-either of the notcheslS, and

is adapted to travel in the Vslotfromjone notch to the other tofassumerdiflerent positions as is apparent. Y Y Y i "f1 Thus it will beseenthat when the levery is pushed upwardly betweenthewalls7-7, the rounded head 14 of the lever will engage with 85 the movable ljaw'9 and as the bolt 15 rides over 'the rounded head 19 ofthe-projections 17 between-the notches 18, the 'movable jaw'lO will bemov'ed toward the stationary jaw', so as to grip an object between the two jaws and at the'slame time permit the boltto drop down into the other of the notches 18 and it is obvious that further pressure being applied to the handle to turn thebolt 15' in the last mentioned position `will urge the movable jaw against the member tofbe heldbetween the' jaws thus eecting a tight grip ofthe jaws upon the member to be held. Y v f i.

Attention is now ydirected to Figure 4, whereinit is lillustrated that thefbodypor filou tion 13 of an operating lever has a slot 19 formed on one face thereof, which slot is adapted to accommodate a suitable spring member 20, one end of said spring member being anchored Within the slot as at 2l, and as illustrated this spring is adapted to bear against one; of the side Walls 7 to hold the lever in an adjusted position As shown in Figure 5, the movable jaw,

now designated by the reference character 22 is provided Withthe usual'body p'ortionfd,

which body portion is similar to the body portion 11 of the first mentioned movable jaw, and the jaw portion- 25, which jaw portion 25 is formed on its inner face With teeth 26;v jaw so formed as justl described is preferably to be used when the Wrench is to be usedl as a pipe Wrench, Whereas it may be preferable to use the first mentioned' typje of jaw as an ordinary Wrenchi for holding o jects with square sides, but of course the adjusting positive grip action Willl act as Well when either jaw is used.

From the' foregoing then, it will be seen that I have provided an improved Wrench capable of varied use, which is' very simple inl construction and whichy Will bel found thoroughly eiiicient and reliable in use;

Even though I have herein shown and de'- scribed certainf detail structuralY featres of my invention, it is to be understood thatthe sameis susceptible tti-changes fully comprehended by the spirit of the invention as herein described and thefscope of the appended claim. l Y

What is claimed is:

In testimony whereof, I affix my signature. m

Le ABRAHAMSON.

a Wrench structure o'fthe'charaeter described, a iixed jaw having a pair of spaced parallel Walls fixed thereto and' extending laterally therefrom, a movable jaw slidably mounted on the upper edges of said Wall for movement towardv or awa-y from said fixed jaw, saidmovable jaw havingabody portion extending between said parallel Walls, said body portion of said-movable ja-W having a rounded recess formed therein, each? of` said parallel Walls having al slot formed therein, said' slots being in alinement, eachofV said Walls being provided With a projectionI disposed at righ-t angles to the length ofsaifd slots, said'projectionsfbeing respectively providedvvith a rounded edge, a' lever rockably mounted in said side Walls and having a rounded extremity adapted to'be received'in the recess of the body portion of said movable jaw, a bolt for said lever having its opposite ends extending into said slotsv and ridable over thevrounded edges of said proj ection, upon movement longitudinally With-- respectto the slotswhereby when said bolt is moved over the rounded edges of saidgprojections said rounded extremitiesv of the lever Will be moved into they recessI of the' body of said movablej aw for moving the latter toward oraway-from said' stationaryjaw,l said lever 

